1967 Bolts

[Brian #46951]

I have had people tell me that certain bolt markings were used to afix specific parts to engine, body, transmission, etc. I look at the Judging Guide and about 40-50% of the time it will list specific markings for specific attachment bolts. My question is: If the Judging Guide does not list a specific attachment bolt for a specific part, can any bolt do? How many points are deducted if the bolt is not correct and yet it is not listed in the Judging Guide?

[Joe L.]

Re: 1967 Bolts

Brian-----

I think that what's shown in the JG with respect to bolt head markings are one or more for any application which are known to have been originally used. Since a large number of different manufacturers usually supplied fasteners to PRODUCTION, others may have been used, too.

I believe that, generally, fasteners with the correct head configuration and with PERIOD-CORRECT headmarkings will usually be accepted for most applications. There may be some cases in which special fasteners were used and, for these, there may be accepted only one headmarking.

[Gerard F.]

Re: 1967 Bolts

Brian,

There are a lot of variances with the Judging Guide and the real world in regard to bolt head markings. I like the term "most commonly used" which is probably correct 40-50% of the time. If you feel that a bolt head marking is the original bolt on your car based upon history, it is probably more correct than the Judging Guide, and argueable at judging.

I have an original 67 with lots of variances to the Judging Guide in terms of bolt head markings. They just used whatever was available in the bin at the time of assembly.

Jerry Fuccillo
#42179

[Brian #46951]

Re: 1967 Bolts

Thanks to both of you. If anyone else has any input it would be greatly appreciated.

[William C.]

Re: 1967 Bolts

In addition to what has been mentioned, other things that will catch a judges eye are "hardware store" bolts without Manufacturers logos, or bolts from manufacturers that were not recognized GM supplier of the period in question such as Dorman.